A Member State which decides to withdraw shall notify the European Council of its intention... the Treaties shall cease to apply... two years after the notificationArticle 50, The Lisbon Treaty

Who's going to make Brexit happen?

Theresa May has handed Brexit Secretary David Davis the task of negotiating terms with the EU, while International Trade Secretary Liam Fox is seeking post-Brexit trade deals with non-EU countries.

Both men campaigned for Leave and the PM has made it their job to ensure it happens.

Michel Barnier is leading the negotiations on behalf of the European Commission, while Belgian MEP Guy Verhofstadt - who ex-UKIP leader Nigel Farage has described as a "fanatic" - is Brexit coordinator for the European Parliament.

European Commission president Jean-Claude Juncker and European Council president Donald Tusk have also held frequent meetings with the PM as the Brexit process continues.

Image:Boris Johnson, Foreign Secretary.

Image:Guy Verhofstadt, Member of the European Parliament and its Brexit negotiator.

Image:Philip Hammond, Chancellor of the Exchequer.

Image:Michel Barnier, former French minister and European Commission's Chief Negotiator.

Image:Liam Fox, Secretary of State for International Trade.

Image:Didier Seeuws, Head of EU Task Force on Brexit.

Image:David Davis, Secretary of State for Exiting the European Union.

Image:Jean-Claude Juncker, President of the European Commission.

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What does the Government want?

Theresa May has made two major speeches on her Brexit plans so far.

At Lancaster House in January 2017, the PM outlined her wish to leave the EU's single market and customs union in favour of a "comprehensive, bold and ambitious free trade agreement" with the EU.

She laid down red lines on controlling EU immigration, leaving the jurisdiction of the European Court of Justice (ECJ) and ending large payments to the EU budget.

Critics have dubbed her approach a "hard" Brexit.

In September 2017, the PM made a speech in Florence in which she was judged to have made a series of concessions in order to navigate a deadlock in Brexit negotiations with the EU.

Image:Theresa May was judged to have made concessions to the EU during her Florence speech

What has been agreed so far?

When Brexit negotiations began in June 2017, the EU demanded "sufficient progress" be achieved in discussions on three key divorce issues: the UK's financial settlement, the Irish border, and citizens' rights.

The PM also agreed UK courts will be able to refer cases on citizens' rights to the ECJ for eight years after Brexit.

In addition, the Government committed, in the event of no final Brexit deal being agreed, to maintaining "full alignment" with EU rules where they support North-South cooperation on the island of Ireland and protect the 1998 Good Friday Agreement.

Critics have accused the PM of breaching her Brexit red lines with the phase one agreement, with some Brexiteers worried the UK will be forced to follow EU rules after leaving.

Image:The Government is committed to avoiding a hard border on the island of Ireland

What's still to be agreed?

The EU and UK will now discuss what the Government hopes will be a two-year implementation period after the UK's exit from the bloc in 2019.

During this time, the UK is likely to maintain all EU rules and pay into the EU budget.

The PM has said such a period is necessary to allow businesses enough time to prepare for post-Brexit changes to regulations.

After agreeing an implementation period, or transition period, the Government then hopes to strike a free trade deal with the EU on more favourable terms than the one recently signed by Canada.

A Brexit agreement will then have to be ratified by EU leaders, the European Parliament and, possibly, the UK Parliament.

MPs have demanded a "meaningful vote" on the terms of the final exit deal before March 2019.

Prior to the UK's exit, the Government also needs to end the supremacy of EU law and alter British legislation so it is workable after Brexit.

The aim is to achieve this with the proposed EU Withdrawal Bill.

Image:MPs have demanded a 'meaningful vote' on the Brexit deal

Will the EU collapse?

...is one of the most Googled questions following the referendum result.

Sky's political correspondent Tamara Cohen has the answers.

Video:Most Googled: Will the EU collapse after Brexit?

Video:Most Googled: Can we change our mind?

Video:Most Googled: Who is the Prime Minister?

How's everyone getting on?

A 52% - 48% referendum result left cities, communities and families divided by class, age and geography.

So we got passionate Remainers and Brexiteers to discuss how they felt over dinner. It was awkward.

Image:Leavers celebrate the UK referendum result

Why did Leavers want to leave?

Even as the polls closed the betting markets said the UK was going to remain in the EU. By 4am, it was clear more than 17 million people had voted to leave.

We travelled around the country to find out why leavers felt that way.

We also went to Sunderland, the city that started the Leave campaign party, to find out why everyone had got their predictions so wrong.

Video:No Regrets: Sunderland Still Backs Brexit

Has anyone changed their minds?

Opinion polls have consistently shown no marked change in voters' attitude to Brexit, with the Leave-Remain split closely mirroring the referendum result in the months after June 2016.

A YouGov survey in December 2017 revealed 45% of voters believe the UK is wrong the leave the EU, while 44% believe it is the right decision.

Will Brexit definitely happen?

The Government has ruled out a second referendum on Britain's EU membership, despite some calling for a national vote on the final terms of the Brexit deal.

Ministers have also repeated Britain will definitely be leaving the EU in March 2019.

What next?

This page will be updated whenever Britain makes a major step towards actually leaving the EU. In the meantime, this feed of Brexit articles will track every business decision, economic forecast and political spat along the way.